{"id":"CVE-2026-82056","title":"A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths","summary":"A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths. Under certain concurrent index lifecycle operations, a raw pointer to internal text index metadata may b…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416"],"vendor":"mongodb","product":"mongodb","affected":["mongodb >= 7.0.0, < 7.0.41","mongodb >= 8.0.0, < 8.0.30","mongodb >= 8.3.0, < 8.3.9"],"patched":["mongodb 8.3.9"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:35:00.040","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82056","references":[{"url":"https://jira.mongodb.org/browse/SERVER-130306","label":"cna@mongodb.com"}],"tags":["nvd","cve.org"],"epss":0.00248,"epssPercentile":0.16436,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T18:01:11.265849Z"},"ingestedAt":"2026-09-08T16:34:19.257Z","slug":"CVE-2026-82056","body":"## Overview\n\nA race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths. Under certain concurrent index lifecycle operations, a raw pointer to internal text index metadata may be dereferenced after the underlying structures have been freed, leading to a server crash. An authenticated user with readWrite privileges can trigger this condition through specific concurrent text-search and index management operations, resulting in denial of service for all connected clients. This\n\n## Affected\n\n- `mongodb >= 7.0.0, < 7.0.41`\n- `mongodb >= 8.0.0, < 8.0.30`\n- `mongodb >= 8.3.0, < 8.3.9`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `mongodb 8.3.9`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}